Home / 51,086.10-76,665.60-28,875.90

Finding the Fourth Proportional to 51,086.10, 76,665.60 and 28,875.90

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Solution

The fourth proportional to 51,086.10, 76,665.60 and 28,875.90 is: 43,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,086.10 : 76,665.60 = 28,875.90 : x
  2. Step 2: Convert to fraction form
    51,086.10/76,665.60 = 28,875.90/x
  3. Step 3: Cross multiply
    51,086.10x = 76,665.60 × 28,875.90
  4. Step 4: Simplify right side
    51,086.10x = 2,213,788,199.04
  5. Step 5: Solve for x
    x = 2,213,788,199.04/51,086.10
  6. Step 6: Final answer
    x = 43,334.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.